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Application Of Functional Nanofiber Materials In Water Filtration

Posted on:2014-02-13Degree:MasterType:Thesis
Country:ChinaCandidate:X XueFull Text:PDF
GTID:2232330398950806Subject:Textile Engineering
Abstract/Summary:PDF Full Text Request
In this study, hydrophilic poly(vinyl alcohol-co-ethylene)(PVA-co-PE) nanofibers werefabricated from PVA-co-PE/cellulose acetate butyrate (CAB) immiscible polymer blends,which was a high throughput, low cost and environmental friendly method for preparingthermoplastic polymer nanofibers. A new method was invented by our group to prepare PVA-co-PE nanofibrous membrane. The basic properties of PVA-co-PE nanofibrous membraneand commercially available membrane (mixed cellulose ester membrane) includingmorphology, pore size distribution, contact angle, mechanics, water fl ux and filtrationproperties were investigated. The rejection rate of PVA-co-PE nanofibrous membrane(nanofiber density is3g/m2) to TiO2suspension was more than99%, and such uniquehydrophilic nanofibrous membrane exhibited a flux rate significantly higher than commercialmicrofiltration membrane. The results indicated that PVA-co-PE nanofibrous membraneprepared by this method is a hydrophilic and high flux membrane which could be used in themicrofiltration fields.
Keywords/Search Tags:PVA-co-PE, Nanofiber, Nanofibrous membrane, Filtration
PDF Full Text Request
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